Brush device for trimming-machines



W. J. STEERE.

BRUSH DEVICE FOR TRIMMING MACHINES.

APPLICATION mm MAY 2I,.19'l7. RENEWED DEC. 13. I919.

1,348,247. Patented-Aug. 3,1920

wa Z I I A6" I; Q) 4 2/ I WM" W UNITED STATES WILLIAM J. STEERE, OF ROCKWOOD, TENNESSEE.

BRUSH DEVICE FOR TRIMMING-MACHINES.

Specification of Letters Patent.

Patented Aug. 3, 1920.

Application filed May 21, 1917, Serial No. 170,107. Renewed December '13, 1919. Serial No. 344,758.

To all whom it may concern:

Be it known that I, \VILLIAM J. Srnnnn, a citizen of the United States of America, residing at Rockwood, in the county of Roane and State of Tennessee, have invented certain new and useful Improvements in Brush Devices for Trimming-Machines, of which the following is a specification, reference being had therein to the accompanying drawing.

This invention relates to a brush attachment for a trimmer, used in connection with a sewing machine for uniting looped fabrics, such as is disclosed in my Patent 916,799, granted March 30, 1909, and in the patent to Ferguson, 1,259,382, granted March 12, 1918, and has for its object the production of a simple and efficient oscillating brush for loosening and brushing off lint or other extraneous matter from the seams of the knitted fabric.

Another object of this invention is the production of a simple and efficient driving means for the oscillating brush.

With these and other objects in view this invention consists of certain novel combinations and arrangements of parts as will be hereinafter fully described and claimed.

In the drawings Figure 1 is a top plan View of the brush and supporting means therefor.

Fig. 2 is an end elevation of the brush. I Fig. 3 is a section taken on line 33 of F Fig. 4: is a section taken on line 1-4 of Fig. 5 is a section taken on line 55 of Fig. 3, the brush being removed from its supporting shaft.

By referring to the accompanying drawings, it will be seen that 1 designates the supporting clamp of the trimmer, and it is desired to state that it is thought unnecessary to illustrate the construction of the trimmer in connection with which the present brush attachment is used. A main supporting shaft 2 is carried by the base 1, and this shaft supports a rocker arm 3 to which rocker arm is connected an operating link 4. This operating link 4 is connected to the rocker arm 3 by means of an intermediate link 5, which link is secured to one end of the rocker arm 3, by means of a screw 4, and is provided with an ark-shaped slot 6, through which a lock screw 7 passes. This locking screw 7 is secured to the outer end'of the rocker arm 3, and permits the intermediate link 5 to be adjusted to a set position, with respect to the longitudinal axis of the rocker arm 3.

A vertically extending shaft 8 is employed and constitutes a support for a segmental arm 9, which is mounted thereon, for oscillating movement. This segmental arm 9 is provided with a laterally projecting neck 10, which is bifurcated at 11, for the purpose of engaging the depending end 12 of the rearwarclly extending finger 13 of the oscillating arm 3.

A brush operating arm 15 is mounted for oscillating movement upon the shaft 8, and is connected in an adjusted relation to the segmental arms by means of a locking screw 14, which is carried by the arm 15 and passes through the arc-shaped slot 15 carried by the segmental arm 9.

A bracket 16 is'clamped upon the shaft 8 by means of a clamping screw 17, and this bracket 16 is provided with a depending web 18, which depending web 18 carries a sleeve 19, at its lower end. A brush supporting shaft 20 is journaled within the sleeve 19, as shown clearly in Fig. 3 of the drawings, and this shaft 20 carries a pinion 21, which is keyed thereon. The oscillating brush 22 is mounted upon the outer end of the oscillating shaft 20, and is locked upon the shaft by means of a thumb screw 23.

The brush 22 comprises a hub portion 24, which hub portion is cut-away to produce sockets 25 at each end thereof, thereby permitting the bristles 26 to be easily threaded upon the hub portion 24, as shown in Fig. 3 of the drawing. By having the bristles connected to the hub portion 22 as illustrate-d and having the hub portions cut-away, the bristles may be conveniently stitched to the hub portion 22 of the brush.

A substantially U-shaped bracket 27 is secured to the bracket 16, as shown clearly in Figs. 1 and 3 of the drawings, and this bracket 27 is provided with journaled portions 28, at its outer ends within which journaled portions is reciprocally mounted a rack carrying bar 29. This rack carrying bar 29 supports a brush operating head 30 intermediate the ends thereof, which head 30 carries a binding screw 31, for locking the head 30, in a set position upon the bar 29. A rack bar 32 is secured to the lower end of the head 30 by means of the pin 33,

meshing with the pinion 21. A plurality of washers are carried by the shaft 20, and

bear against-the outer face of the pinion 21 and also against the inner face of the rack bar 32. It will be seen from the foregoing description and by carefully considering Fig. 3 of the drawing, that a very simple and efficient means has been produced for retaining the rack bar '32 at its proper alinement position.

The head 30 is provided with an up wardly extending reduced neck 36, which reduced neck fits within the bifurcated end 37 of the brush operating arm 15".

From the foregoing description it will be seen that the brush 26 operates as follows As the arm 3 is swung from side to side, the rack bar 32 will in turn be shifted from side to side, due to the movement imparted from the reciprocating bar 29, and in this way oscillating the pinion 21. As the pinion 21 is oscillated the shaft 20 will also be oscillated due to the fact that the pinion '21 is keyed to the shaft 20. This operation of the shaft 20 will in turn oscillate the brush 26, and constitute an" efficient means in brushing the lint and other accumulated present device may be modified in its mechanical detail construction, without departing from the spirit of the invention, so long as the changes fall within the scope of the appended claim.

By carefully considering Fig. 3, it will be seen that the stitches 22*, which secure the bristles 26, maybe securely fastened within the notches 25, formed in the 'hub 24 of the brush.

What is claimed is A brush attachment for a trimming machine,'comprising a supporting bracket, a brush sup-porting shaft, carried thereby, a swinging arm-overhanging said bracket, a reciprocating bar, means for supporting said reciprocating bar, a head adjustably mounted upon said reciprocating bar, said arm engaging said head, and adapted to reciprocate said bar, as said arm is swung from side to side, a rack bar engaging said head, means for holding said rack bar in proper alinement, a pinion carried by said shaft, and engaging said rack bar, a brush secured upon said shaft, and adapted to be oscillated therewith. V

In testimony whereof I hereunto affix my signature.

WILLIAM J. ST- EERE. 

